diff --git a/Dockerfile b/Dockerfile
index 7f9ec93..a07cf05 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN apt-get update && apt-get -y upgrade && apt-get -y install git wget vim
 
 # install ROS
 RUN sh -c 'echo "deb http://packages.ros.org/ros/ubuntu xenial main" > /etc/apt/sources.list.d/ros-latest.list'
-RUN apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-key 421C365BD9FF1F717815A3895523BAEEB01FA116
+RUN sudo -E apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654
 RUN apt-get update -y && apt-get upgrade -y
 RUN apt-get install -y ros-${ROS_DISTRO}-desktop-full ros-${ROS_DISTRO}-rqt-*
 RUN rosdep init && rosdep update